Rosette for electric wiring.



No. 686,443. Patented Nov; 12, I90I.

J. H. CRAMPHORN.

ROSETTE FOR ELECTRIC WIRING.

(Application filed June 14, 1901.;

(No Model.)

l/V/T/VESSES //v VE/V 70F? UNITED STATES PATENT OFFICE.

JAMES H. CRAMPI-IORN, OF. MEDFORD, MASSACHUSETTS, ASSIGNOR TO CHARLES SUMNER-KNOWLES, OF NEW BEDFORD, AND JOHN HENRY PARKER, OF CLIFTONDALE, MASSACHUSETTS.

ROSETTE FOR ELECTRIC WIRING.

SPECIFICATION forming part of Letters Patent No. 686,443, dated November 12, 1901.

Application filed June 14, 1901. Serial No. 64:,515. (No model) To all whom, it may concern:

Be it known that I, JAMES H. CRAMPHORN, of Medford, in the county of Middlesex and State of Massachusetts, have invented a new and useful Rosette for Electric'Wiring, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 is a plan of my rosette. Fig. 2 is an elevation. Fig. 3 is a section on line 3 3 of Figs. 2 and 5. Fig. 4 is a section on line 4 4 of Fig. 1, and Fig. 5 is a section on line 5 5 of Fig. 1 with the lamp-cords omitted.

The object of my invention is to prevent short-circuiting at the rosette, which heretofore has happened because the bare ends of the lamp-cords and their binding-posts have been in a chamber which could not be practically protected from the entrance of dust and lint, the result being that the accumulation of dust and lint in that chamber bridged the space between the two binding-posts and in time formed a conductor which short-circuited the lamp.

In my rosette the binding-posts are so separated by the material of the rosette that it is impossible forany dust, lint, or'other foreign matter to collect between them, and this is the distinguishing peculiarity of my invention.

In the drawings I have shown the best form in which I have contemplated applying my new principle, the substance of the matter being that the binding-posts A A. are on opposite sides of base B and are separated by the I boss B, which is perforated at b to receive the cords D, the two ends of the cords extending, respectively, to the two binding-posts A A. The cord-hole bin the boss opens into a recess b, which allows the knotd to be formed to make a secure connection between the cords D and the rosette, and the-ends d of the knot at are protected by the sides of the boss, these ends 61' being passed, respectively, through holes 19*, leading from recess b to the recesses b? in boss B, which recesses b receive the binding-posts A A. The binding-posts A A are for the feeder-wires.

The cords D are first passed through the hole I) and out through the recess 6. The two ends of cords D are then knotted together. One end of the knot'is passed through one hole 19 to the binding-post A and the other end of the knot through the other hole b .to the binding-post A and the bare wires secured to the binding-posts A A in the usual way. One important function of the holes b is to serve as guides, greatly facilitating the attachment of the cords to the rosette. These holes 12 also eitectually prevent dust and lint or other foreign matter from forming abridge between the binding-posts A A.

What I claim as my invention is 1. The rosette above described made up of abase and aboss on that base separating the binding-posts of the lamp-cords, which boss has a central hole for the two lamp-cords, a side recess for the knot connecting the ends of the two lamp-cords, and two side holes through which the ends of the knot in the lamp-cords extend to the binding-posts.

2. In a rosette of the kind above described a base and a boss made integral with a central cord-hole in the boss, a side recess in the boss into which'the central cord-hole opens, two side holes opening out of the side recess, and two other side recesses into which the side holes open respectively.

JAMES H. CRAMPHORN.

Witnesses:

G. A. RooKwELL, C. B. MAYNADIEB. 

